I am looking at buying this Andoid powered Erisin stereo. there are a few of thewse Android stewreos on e-bay and I am thinking of pulling the triger but it come with Android 2.3 and Erisin said that they don't have an upgrade and don't recommend I mess with it. This is the one I am thinking of getting because it has a REMOVABLE Android tablet. Erisin ES7035A 7 HD Car DVD GPS Android MID PAD Tablet [ES7035A] - US$320.00 : erisin.com This is basically an Android 2.3 car stereo AND you can remove the tablet and use it outside of the car and the stereo still works. I just want to know if anyone has tried to upgrade on of these to 4.0, Jelly Bean etc. I also don't know what front end they are using. to make it have car stereo display, etc. I think with at least ICS and Gogle Maps Nav this could be a great little powerhouse of a car stereo/portable tablet. If it didn't have a proprietary pin connector you could drop a 7" Nexus on it!